Need help to design cookie for affiliate website

Avg Bid (USD)
Project Budget (USD)
$30 - $250

Project Description:
Need little help to create cookie for affiliate website.
I have tracking system.What is the problem :
1) customer press banner with tracking URL.Goes to site. Customer submit personal data on pages 1, page 2 and page 3.
2) On page 4 he has option : "Put affiliate ID"

And customers don't do that and affiliate tracking system doesn't know referer.So I need cookie which will write in Affiliate ID automatic affiliate ID so customer don't need to do anything.

I don't want to edit tracking software (it is not mine software) only to set cookie to write ID instead customer and to help affiliates to get revenue share.

This is very very easy job.Budget is $10 to $30.

Thank you!

Skills required:
.NET, ASP, HTML, Javascript, PHP
Hire orfejzarada
Project posted by:
orfejzarada Serbia
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